Adjustable carrier sense threshold for wireless broadcast
AssigneeQUALCOMM Incorporated
InventorsGang Ding, Kiran S. Chikkappa, Patrik N. Lundqvist, Rahul Malik
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Abstract
A method of adjusting a carrier sense threshold to avoid hidden nodes during wireless broadcast. The method includes monitoring a load of the peer-to-peer network before broadcasting a message from a node. The method also includes adjusting a carrier sense threshold (CST) based on the load of the peer-to-peer network to avoid broadcast message collisions due to one or more hidden nodes.
Claims12
A method of wireless communication in a peer-to-peer network, comprising:
- monitoring a load of the peer-to-peer network before broadcasting a message from a node;
- and
- adjusting a carrier sense threshold (CST) based on the load of the peer-to-peer network before broadcasting the message, to avoid broadcast message collisions due to one or more hidden nodes, wherein the adjusting comprises—
- lowering the CST to increase a carrier sense range if the load of the peer-to-peer network increases, and
- increasing the CST to decrease the carrier sense range if the load of the peer-to-peer network decreases.
An apparatus for wireless communication in a peer-to-peer network, comprising:
- means for monitoring a load of the peer-to-peer network before broadcasting a message from a node;
- and
- means for adjusting a carrier sense threshold (CST) based on the load of the peer-to-peer network before broadcasting the message, to avoid broadcast message collisions due to one or more hidden nodes,
- wherein the means for adjusting comprises:
- means for lowering the CST to increase a carrier sense range when the load of the peer-to-peer network increases, and
- means for increasing the CST to decrease the carrier sense range when the load of the peer-to-peer network decreases.
An apparatus for wireless communication in a peer-to-peer network, comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- monitor a load of the peer-to-peer network before broadcasting a message from a node;
- and
- adjust a carrier sense threshold (CST) based on the load of the peer-to-peer network before broadcasting the message, to avoid broadcast message collisions due to one or more hidden nodes,
- wherein the at least one processor is configured to adjust the CST by being configured to:
- lower the CST to increase a carrier sense range when the load of the peer-to-peer network increases, and
- increase the CST to decrease the carrier sense range when the load of the peer-to-peer network decreases.
A non-transitory computer-readable medium storing computer executable code for wireless communication, comprising code for:
- monitoring a load of a peer-to-peer network before broadcasting a message from a node;
- and
- adjusting a carrier sense threshold (CST) based on the load of the peer-to-peer network before broadcasting the message, to avoid broadcast message collisions due to one or more hidden nodes,
- wherein the code for adjusting the CST comprises code for:
- lowering the CST to increase a carrier sense range when the load of the peer-to-peer network increases, and
- increasing the CST to decrease the carrier sense range when the load of the peer-to-peer network decreases.
Dependencies are inferred from the claim text.